3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $data='{"multicast_id":7917175795873320166,"success":6,"failure":0,"canonical_ids":4, "results":[ {"registration_id":"3","message_id":"m1"}, {"message_id":"m1"}, {"message_id":"m1"}, {"registration_id":"3","message_id":"m1"}, {"registration_id":"3","message_id":"m1"}, {"registration_id":"3","message_id":"m1"}]}'; $newData=json_decode($data); print_r(array_keys($newData->results));
Output for 5.2.0 - 7.1.0
Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 [4] => 4 [5] => 5 )
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/VTGsn on line 15
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/VTGsn on line 15
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/VTGsn on line 15
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/VTGsn on line 15